N.J. Sullivan
N.J. Sullivan is a privately held precision metal fabricator and electrical enclosure manufacturer, founded in 1958, producing UL/NEMA-compliant enclosures for utilities, data centers, defense, and renewable energy clients from an 82,000 sq ft Manassas, Virginia facility.
- Company typePrivate
- Founded1958
- HeadquartersDulles, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What N.J. Sullivan does
N.J. Sullivan Company Inc. is a privately held precision metal fabrication and electrical enclosure manufacturer founded in 1958 and headquartered in an 82,000-square-foot facility in Manassas, Virginia. The company produces UL-listed and NEMA-compliant (Type 1, 3R, 4X, 12) electrical enclosures, CT cabinets, termination cabinets, bussed troughs, safety disconnect switches, copper bus and ground bars, and roll-up generator termination cabinets. Its manufacturing capabilities span laser cutting, CNC punching, 175-ton press brake forming (up to 10 ft bends), precision CNC milling and turning, MIG/TIG/spot/robotic welding across steel, stainless, aluminum, copper, and specialty alloys, plus integrated finishing including powder coating, wet paint, sandblasting, and chemical-resistant coatings.
The firm operates as a B2B contract manufacturer with an enterprise field sales motion, processing orders via Request for Quotation (RFQ) forms on its website and supplementing direct sales through distribution partners such as Biben Sales. Pricing is quote-based and not publicly disclosed, with multi-year contracts typical for utility customers. The company holds ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certifications and has been recognized as a Principal 10 Best Company.
N.J. Sullivan's customer base is anchored by ten named investor-owned and cooperative utilities (PEPCO, NOVEC, Dominion Energy, SMECO, BG&E, Duke Energy, PECO, PPL, Appalachian Power, Duquesne Light) and is increasingly diversifying into data and digital infrastructure (notably Northern Virginia's data center cluster), aerospace and defense, renewable energy transition, and water and wastewater treatment. Geographic reach is domestic US, with emphasis on the Mid-Atlantic region.
N.J. Sullivan firmographics
Firmographics- Name
- N.J. Sullivan
- Legal name
- N.J. Sullivan Company Inc.
- Website
- https://njsullivan.com
- Company type
- Private
- Founded year
- 1958
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- N.J. Sullivan is a privately held precision metal fabricator and electrical enclosure manufacturer, founded in 1958, producing UL/NEMA-compliant enclosures for utilities, data centers, defense, and renewable energy clients from an 82,000 sq ft Manassas, Virginia facility.
- Ownership category
- akta.pro rank
N.J. Sullivan industry classification
Industry- Product category
- Electrical Enclosures Manufacturing
- NAICS
- Switchgear and Switchboard Apparatus Manufacturing (335313), Precision Turned Product Manufacturing (332721)
- SIC
- Electrical Industrial Apparatus (3620), General Industrial Machinery & Equipment (3560)
- akta.pro primary industry
- Industrial Control Cabinets & Power Distribution (Panels, Switchgear for Automation) (IMAHAHAK)
- akta.pro secondary industries
- High-Voltage Electrical Systems (Switchgear, Transformers, Protection & Control) (EUAEAFAA), Medium/Low-Voltage Power Distribution (MCCs, Panels, UPS, Grounding) (EUAEAFAB)
Keywords
Where N.J. Sullivan is headquartered
LocationHeadquarters
- HQ city
- Dulles
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
N.J. Sullivan business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales
Revenue model
- Custom Electrical Enclosure Sales: Manufacture and sale of custom and standard electrical enclosures, CT cabinets, termination cabinets, bussed troughs, safety disconnect switches, and copper bus/ground bars. Products are UL and NEMA compliant.
- Custom Metal Fabrication Services: Precision machining, sheet metal fabrication, welding, assembly, and metal finishing services for custom components across multiple industries including data centers, utilities, and defense.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom quotation required for all products |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels4 records
N.J. Sullivan product offering
Product offeringCore offering
N.J. Sullivan is a precision-engineered electrical metal fabricator that manufactures electrical enclosures, current transformer (CT) cabinets, bussed troughs and gutters, termination cabinets, safety disconnect switches, copper bussing and ground bars, and roll-up generator termination cabinets. Founded in 1958 and operating from an 82,000-square-foot facility in Manassas, Virginia, the company supplies engineered-to-order electrical infrastructure products and metal fabrication services to utility, data center, defense, renewable energy, and industrial customers.
Product overview
N.J. Sullivan is a precision-engineered electrical metal fabrication company established in 1958, operating from an 82,000-square-foot facility in Manassas, Virginia. The company's core product portfolio centers on UL and NEMA-compliant electrical metal fabrication products, including Electrical Enclosures (NEMA Type 1, 3R, 4X, 12), CT Cabinets, Bussed Trough and Bussed Gutter, Termination Cabinets, Safety Disconnect Switches, Roll Up Generator Termination Cabinets, and Copper Bussing and Ground Bars. These electrical products are complemented by manufacturing service capabilities in Metal Fabrication, Metal Finishing (powder coating, wet paint), Assembly, Precision Machining (CNC), Precision Sheet Metal, and Welding (MIG, TIG, robotic). The company serves utilities, contractors, data centers, aerospace/defense, and renewable energy sectors.
Differentiator
Problem solved
Functional benefit
Quantifiable outcome
- Reduced lead times compared to industry standards
- +1 more outcomes
Companies that use N.J. Sullivan
Customer profileNamed customers10 records
Segments5 records
Ideal customer profiles4 records
N.J. Sullivan technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
N.J. Sullivan partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Biben SalesminorDistribution partner for N.J. Sullivan's electrical products. Biben Sales distributes NJ Sullivan enclosures and electrical components through their sales network.
Scale indicators4 records
Recent moves6 records
Expansion highlights6 records
N.J. Sullivan competitors and assessment
Company assessmentBroad incumbents
- Rittal: Rittal is a major global manufacturer of industrial and IT enclosures, power distribution, and climate control solutions. It overlaps directly with N.J. Sullivan on electrical enclosures, control cabinets, and data center infrastructure housings, and serves similar utility and industrial verticals from a much larger global footprint.
- Eaton: Eaton is a global power management company offering switchgear, power distribution enclosures, and electrical assemblies for utility, data center, and industrial markets. Its medium-voltage and low-voltage electrical enclosure lines overlap with N.J. Sullivan's bussed trough, termination cabinet, and switchgear enclosure portfolio.
- nVent (Hoffman brand): nVent is a global electrical connection and protection solutions company whose Hoffman brand is a leading manufacturer of standard and custom electrical enclosures. It competes with N.J. Sullivan on NEMA-rated enclosures and cabinets serving data center, utility, and industrial customers, but at much greater scale and with a broader global catalog.
- Hubbell Incorporated: Hubbell is a large diversified electrical products company with utility-grade enclosures, switchgear, and electrical apparatus offerings serving the same investor-owned and cooperative utility customers as N.J. Sullivan. While it covers a far broader product portfolio, its enclosure and cabinet lines overlap with N.J. Sullivan's CT and termination cabinets.
Direct peers
- Stahlin Enclosures: Stahlin (formerly Stahlin Non-Metallic Enclosures) manufactures NEMA-rated electrical enclosures in both metallic and non-metallic materials for harsh-environment industrial and utility applications. It competes directly with N.J. Sullivan in the NEMA 3R/4X outdoor enclosure segment used by utilities and renewable energy customers.
- Hammond Manufacturing: Hammond Manufacturing is a North American manufacturer of electrical enclosures, transformers, and rack-mount products serving industrial, utility, and electronics customers. Its NEMA-rated enclosures and custom metal fabrication offerings are closely comparable to N.J. Sullivan's CT cabinets, termination cabinets, and electrical enclosure portfolio.
- Trinity Steel Corporation: Trinity Steel is a US custom metal fabrication and powder coating provider serving data center, utility, and industrial customers from multiple regional facilities. It competes with N.J. Sullivan on precision sheet metal, CNC machining, and finishing services for electrical enclosure and structural components.
- Saginaw Metal Products: Saginaw Metal Products is a US-based custom sheet metal fabricator and electrical enclosure manufacturer serving utility, defense, and industrial customers. It competes with N.J. Sullivan on NEMA-rated enclosures, custom cabinets, and precision sheet metal work for similar end markets.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights1 record
Customer concentration
N.J. Sullivan social profiles
Digital presenceN.J. Sullivan compliance and trust
Trust signalCompliance7 records
N.J. Sullivan financial estimates
Financial estimateRevenue estimate
Valuation estimate
N.J. Sullivan leadership team
Management profileNumber of profiles
N.J. Sullivan funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
N.J. Sullivan M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about N.J. Sullivan
What does N.J. Sullivan do?
N.J. Sullivan is a precision-engineered electrical metal fabricator that manufactures electrical enclosures, current transformer (CT) cabinets, bussed troughs and gutters, termination cabinets, safety disconnect switches, copper bussing and ground bars, and roll-up generator termination cabinets. Founded in 1958 and operating from an 82,000-square-foot facility in Manassas, Virginia, the company supplies engineered-to-order electrical infrastructure products and metal fabrication services to utility, data center, defense, renewable energy, and industrial customers.
Is N.J. Sullivan a public or private company?
N.J. Sullivan is a private company. It is classified as unknown and is currently operating.
When was N.J. Sullivan founded?
N.J. Sullivan was founded in 1958. It employs 11 to 50 people.
Where is N.J. Sullivan based?
N.J. Sullivan is headquartered in Dulles, United States, in the North America region.
How does N.J. Sullivan make money?
Two revenue lines are on record. Custom Electrical Enclosure Sales are the primary driver. The others are custom Metal Fabrication Services.
Who are N.J. Sullivan's main competitors?
Broad incumbents on record are Rittal, Eaton, nVent (Hoffman brand) and Hubbell Incorporated. Direct peers are Stahlin Enclosures, Hammond Manufacturing, Trinity Steel Corporation and Saginaw Metal Products.
Does N.J. Sullivan have an API?
No public API is recorded for N.J. Sullivan.
What industry is N.J. Sullivan in?
N.J. Sullivan's product category is Electrical Enclosures Manufacturing. Its primary akta.pro industry code is IMAHAHAK, Industrial Control Cabinets & Power Distribution (Panels, Switchgear for Automation), with a secondary code of EUAEAFAA, High-Voltage Electrical Systems (Switchgear, Transformers, Protection & Control). Its NAICS code is 335313 and its SIC code is 3620.